激光重熔对45^#钢碳氮共渗层性能改进研究  

Study of Improving Microstructure and Performance of Carbonitriding layer on Surface of 45 Steel with Leaser-remitting

作　　者：翁朝辉[1] 彭如恕[1] 粟俊杰[1] 王泽斌[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001

出　　处：《热处理技术与装备》2009年第2期28-31,共4页Heat Treatment Technology and Equipment

摘　　要：将45#钢表面进行碳氮共渗试验,再将碳氮共渗层在进行激光重熔试验,通过试验的前后对比结果显示:碳氮共渗层表层出现的裂纹、黑带、组织粗大、网状化合物合成等组织缺陷已经得到很好的改善。First, the carbonitriding experiment is carried out on the surface of 45 steel, and then the leaser-remeltting experiment is carried. The comparison of two experiments results shows, the carbonitriding layer appear organization default like crack, black belt, coarse-microstructure and meshed compound , and its has been improved.

关 键 词：激光重熔 碳氮共渗 显微硬度 显微组织 

分 类 号：TG142.15[一般工业技术—材料科学与工程]